Bug 460375

Summary: Calibration Plot non-orthogonality
Product: [Applications] kstars Reporter: Jean-Claude <jcjesior>
Component: generalAssignee: Jasem Mutlaq <mutlaqja>
Status: CONFIRMED ---    
Severity: normal CC: hymur67
Priority: NOR    
Version: 3.6.1   
Target Milestone: ---   
Platform: Other   
OS: macOS   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: Calibration plot bug
My trains
Guiding

Description Jean-Claude 2022-10-13 15:38:20 UTC 
Created attachment 152773 [details]
Calibration plot bug

SUMMARY
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STEPS TO REPRODUCE
1. Compare the Calibration plots obtained with KStars 360 and KStars 361 
2. 
3. 

OBSERVED RESULT
KStars 360 : the calibration plots are orthogonal
KStars 361 : the calibration plots are NOT orthogonal
But guiding is still OK with KStars 361 

EXPECTED RESULT


SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
Comment 1 Jasem Mutlaq 2022-10-14 04:44:33 UTC 
Check Optical Train and make sure you selected the correct guider. Guider is NOT camera, guider is the the device that *receives the correction pulses* like your mount for example.
Comment 2 Jean-Claude 2022-10-14 08:07:05 UTC 
Created attachment 152796 [details]
My trains

Thanks for the suggestion and I checked again my trains (see attachment) :
I use for guiding the secondary train including : 
- as guiding camera "ASI CCD ASI174MM" 
- as guider "EdgeHD" (a custom driver created for the config 2800@F/10.0
Comment 3 Jasem Mutlaq 2022-10-15 06:34:49 UTC 
If this is using OAG, then the setup is indeed correct.
Comment 4 Jean-Claude 2022-10-15 20:34:49 UTC 
Created attachment 152861 [details]
Guiding

Yes I'm using an OAG .
I repeated the guiding in KStars 360 and KStars 361 this evening and I got the same results (see attachment "Guiding") : non-orthogonality in the KStars 361 calibration plot
Comment 5 Hy 2022-10-22 17:54:28 UTC 
Yes, it's true. In fact I intentionally broke it in commit https://invent.kde.org/education/kstars/-/commit/77c4b156d5de91f04c461af41195ee11df158daa where I chose to make the calibration plot non-square (non-equal x and y axes scales) in order to make the drift target square. I wish I knew how to make both square.  I prioritized the drift target over the calibration plot.

You can make it square by resizing it or pulling the divider left or right.

Doesn't seem to be a way to mark a bug as "don't know how to fix"!